using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Drawing.Imaging;

namespace DrawTest
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void pictureBox1_MouseMove(object sender, MouseEventArgs e)
        {
          
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            int[,] a = new int[2, 2];
            int[,] b = new int[2, 2];

            a.CopyTo(b, 0);
            a[1,1] = 9;
        }
    }
}